LightSquared added another name to its list of allies yesterday, with a wholesale agreement allowing AirTouch products to dabble in the world of wireless. The phone manufacturer, which makes telecom devices that work with voice, data and video, looks set to become the first newly created MVNO to use LightSquared’s 4G goodness. Of course, all this is assuming that the nascent network actually gets off the ground. But now that it’s supposedly solved that pesky GPS interference problem, what could